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Past Exam for CHEM 135 - GEN CHEM FOR ENGINEERS with DeVoe at Maryland (UMD)

Exam Information

Material Type:Exam 2
Professor:DeVoe
Class:CHEM 135 - GEN CHEM FOR ENGINEERS
Subject:Chemistry
University:University of Maryland
Term:Fall 2000
Keywords:
  • Temperature
  • Useful Information
  • Endothermic
  • Determination
  • Isoelectronic
  • Maximum Number
  • Concentration
  • Final Answers
  • Calorimeter
  • Ernest Rutherford
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Sample Document Text

CHEM 133 (Prof. DeVoe) YOUR NAME (printed) . _______ _ Exam 2 Version B October 18, 2000 Circle your section number: 6117 6121 6124 6127 6128 6131 6137 6141 6144 6145 6147 6151 This exam has a total of 100 points. Please make sure you have all four pages. Do not write in this space 1-8 ___ 124 9 ___ 110 10-12 ___ 114 13 ___ 110 14 __ 110 15 ___ /20 16 /6 17 /6 TOTAL ____ )100 (Possibly) useful information: I atm = 760 mmHg = 1.013 25 x 10 5 Pa T(K) =: t(C) + 273.15 C R = 0.08206 L atm/K mol speed of light = 3.00 x 10 8 mls Avogadro's number:= 6.022 x 1023 Planck's constant = 6.63 >< 10- 34 J. S PART I. Eight multiple-choice questions (3 pts each, 24 pts total). Write the lett(~ (A, II, etc.) of the one best answer for each question on the line at the right I. A helium-filled balloon has c. volume of 3.5 L when the pressure is 790 mmHg. When the balloon is released, its pressure changes to 550 mmHg but its temperature is unchanged; the new volume is cl...

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